In this lesson, fifth grade students are introduced to food chains and ecosystems. They play a game, similar to Go Fish, called "Eat or Be Eaten" where they have to create their own food chains by creating card sequences of what eats what. There are more details about this lesson in my Fieldwork page that explain what happened when we actually taught it.
Link to Mystery Science Lesson that this lesson is based on: https://mysteryscience.com/ecosystems/mystery-1/food-chains-predators-herbivores-carnivores/119
This article from Edutopia gives different ideas for the best ways teachers to integrate literacy into primary school classrooms. It includes daily phonemic awareness activities, being careful about what types of books you provide your students and swapping sight word memorization for "heart words"
Link to article: https://www.edutopia.org/article/early-literacy-strategies-work